Automatic Voltage Regulation of DC Shunt Generators

In a dc shunt generator, as the load increases the terminal voltage falls, giving a drooping characteristic. The regulation of voltage involves the adjustment of field excitation. A simple method of voltage regulation by automatic adjustment of field excitation making use of transistor circuitry is discussed. The added advantage of this method is that by the simple adjustment of circuit parameters, the characteristics of a compound generator can be achieved. Experimental results prove the effectiveness of the method.